Hall element with improved composite substrate

摘要

A magnetoelectric transducer includes a high mobility semiconductor thin film formed on a layer such as an alumina film. Processing to form the device is improved by simultaneous patterning of the semiconductor thin film and an electrode layer. Improved resistance to the effects of heat are obtained by using a highly heat conductive substrate. Integrally with the substrate there may be formed an element such as a series resistor for temperature compensation of the magnetic sensor of the transducer.